After Biff parted ways with his friends, he headed home. It was difficult to leave Mike, Chris, and Randy. Although, out of the four of them, he was the one that handled their situation the best. It was horrible seeing his friends so helpless. He tried to tell them that not all was lost. They could still get back to how they were before. But it would take time.
As Biff walked up to his house, the weakness he saw in his friends began to overtake him. He had never felt so wimpy in his life. On his way home, he had tried to lift a fairly large branch that had fallen from a tree, but he couldn't do it. He had lost all of the strength that he had worked so hard to gain over the last several years.
He opened the front door and walked in. The first major difference he noticed was that all of his pictures and trophies in the living room were gone. One of the reasons that Biff got into football was his dad's motivation. It had always been his dad's dream to have a son playing football. Now that Biff was essentially a geek, he wondered how that affected his dad. His parents were immensely proud of their athletic son, which is why they had his pictures and trophies in the living room where guests could easily see them. But now they were all gone, except for a family portrait that hung on the hallway wall.
He walked with slumped shoulders to his bedroom, stopping for a second when he saw his 8-year old brother's bedroom. Wesley's room looked more like Biff's original room than anything else. Posters of anime characters were replaced with sports posters (mainly football). And comics and toys were replaced with trophies and medals, mostly for first place. Could it be that since Biff renounced sports in this new reality, his brother was instead motivated towards football, even at 8-years old?
Biff entered his bedroom and was stunned (but not positively). His weight-lifting equipment was replaced by a computer workstation. All his sports posters were gone, replaced by framed photos of intellectuals. And all of his athletic magazines were replaced by books, all of them non-fiction, which included quite a few written by Stephen Hawking and Keith Devlin.
Was this his life now? A guy that was more interested in math and science than being popular and playing sports?
He didn't want it. And every minute that passed, he fought this new personality.
But very slowly, he was forced to accept it. As were his friends.